223743 has 8 divisors (see below), whose sum is σ = 321328. Its totient is φ = 137664.

The previous prime is 223711. The next prime is 223747. The reversal of 223743 is 347322.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 223743 - 2⁵ = 223711 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2830 + ... + 2907.

It is an arithmetic number, because the mean of its divisors is an integer number (40166).

2²²³⁷⁴³ is an apocalyptic number.

223743 is a deficient number, since it is larger than the sum of its proper divisors (97585).

223743 is a wasteful number, since it uses less digits than its factorization.

223743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5753.

The product of its digits is 1008, while the sum is 21.

The square root of 223743 is about 473.0147989228. The cubic root of 223743 is about 60.7085442585.

The spelling of 223743 in words is "two hundred twenty-three thousand, seven hundred forty-three", and thus it is an iban number.